Combining Texts

You have chosen 'Leibniz: Guide for the Perplexed' by Franklin Perkins, 'Laws of Nature' by Rom Harr and 'Two Problems for Essentialism' by David M. Armstrong

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All the ideas for Theory of Logic, or select a subheading:
      A. Overview of Logic
      B. Logical Consequence
      C. Ontology of Logic
      D. Assumptions for Logic
      E. Structures of Logic
      F. Referring in Logic
      G. Quantification
      H. Proof Systems
      I. Semantics of Logic
      J. Model Theory in Logic
      K. Features of Logics
      L. Paradox